Device and method for estimating the inflation state of a tire
First Claim
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1. A device for detecting an inflation state of a tire of at least one wheel of a motor vehicle, comprising:
- a memory storing a reference signature of a periodic signal corresponding to a predetermined inflation state of the tire and to reference running conditions;
a means for determining a current signature of a periodic signal corresponding to a current inflation state of the tire and to current running conditions; and
a means for comparing the current signature with the reference signature to determine a pressure increase within the tire, for comparing the determined pressure increase with a threshold pressure increase, and for outputting a signal indicating that a puncture in the tire is detected when the determined pressure increase is above the threshold pressure increase.
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Abstract
A device for estimating an inflation state of a tire of at least one wheel of an automobile, that includes a memory storing a reference signature including a periodic signal corresponding to an inflation and to reference running conditions; a mechanism determining a current signature including a periodic signal corresponding to an inflation and to current running conditions; a mechanism comparing the current signature and the reference signature, and capable of outputting a signal based on the deviation between the current signature and the reference signature.
5 Citations
11 Claims
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1. A device for detecting an inflation state of a tire of at least one wheel of a motor vehicle, comprising:
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a memory storing a reference signature of a periodic signal corresponding to a predetermined inflation state of the tire and to reference running conditions; a means for determining a current signature of a periodic signal corresponding to a current inflation state of the tire and to current running conditions; and a means for comparing the current signature with the reference signature to determine a pressure increase within the tire, for comparing the determined pressure increase with a threshold pressure increase, and for outputting a signal indicating that a puncture in the tire is detected when the determined pressure increase is above the threshold pressure increase. - View Dependent Claims (2, 3, 4)
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5. A method for detecting an inflation state of a tire of at least one wheel of a motor vehicle, comprising:
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storing a reference signature of a periodic signal corresponding to a predetermined inflation state of the tire and to reference running conditions; determining a current signature, of a periodic signal corresponding to a current inflation state of the tire and to current running conditions; determining a difference between the current signature and the stored reference signature to determine a pressure increase within the tire; comparing the determined pressure increase with a threshold pressure increase; and outputting a signal indicating that a puncture in the tire is detected when the determined pressure increase is above the threshold pressure increase. - View Dependent Claims (6, 7, 8, 9)
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10. A device for detecting an inflation state of a tire of at least one wheel of a motor vehicle, comprising:
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a memory configured to store a reference signature of a periodic signal corresponding to a predetermined inflation state of the tire and to reference running conditions; a determination unit configured to determine a current signature of a periodic signal corresponding to a current inflation state of the tire and to current running conditions; and a comparator configured to compare the current signature with the reference signature to determine a pressure increase within the tire, to compare the determined pressure increase with a threshold pressure increase, and to output a signal indicating that a puncture in the tire is detected when the determined pressure increase is above the threshold pressure increase. - View Dependent Claims (11)
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Specification